name: Sync AGENTS.md

on:
  push:
    branches: [main]
    paths:
      - 'agents-md/**'
  schedule:
    - cron: '0 6 * * 1'  # Weekly Monday 6am UTC
  workflow_dispatch: {}

jobs:
  sync:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        repo:
          - barazo-api
          - barazo-web
          - barazo-lexicons
          - barazo-deploy
          - barazo-website
          - barazo-docs
    steps:
      - name: Checkout barazo-workspace
        uses: actions/checkout@v4

      - name: Build AGENTS.md
        run: ./agents-md/build.sh

      - name: Checkout target repo
        uses: actions/checkout@v4
        with:
          repository: singi-labs/${{ matrix.repo }}
          token: ${{ secrets.SYNC_TOKEN }}
          path: target-repo

      - name: Check for changes
        id: diff
        run: |
          if diff -q agents-md/dist/${{ matrix.repo }}.md target-repo/AGENTS.md 2>/dev/null; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Create PR with updated AGENTS.md
        if: steps.diff.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ secrets.SYNC_TOKEN }}
        run: |
          cd target-repo
          BRANCH="chore/sync-agents-md-$(date +%Y%m%d-%H%M)"

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          git checkout -b "$BRANCH"
          cp ../agents-md/dist/${{ matrix.repo }}.md AGENTS.md
          git add AGENTS.md
          git commit -m "docs: sync AGENTS.md from barazo-workspace"

          git push -u origin "$BRANCH"
          PR_URL=$(gh pr create \
            --title "docs: sync AGENTS.md from barazo-workspace" \
            --body "Auto-generated from [barazo-workspace/agents-md](https://github.com/singi-labs/barazo-workspace/tree/main/agents-md). Do not edit AGENTS.md directly in this repo." \
            --head "$BRANCH" \
            --base main)

          # Auto-merge if enabled; log warning if not available
          gh pr merge "$PR_URL" --squash --auto || echo "::warning::Auto-merge not available for ${{ matrix.repo }}. PR created for manual merge."